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Artificial cornea

An artificial cornea and thread segment technology, applied in the medical field, can solve the problems such as the inability of light to enter the inside of the eyeball, blindness, etc., and achieve the effect of reducing irritation and good sealing effect

Active Publication Date: 2013-02-13
BEIJING MICROKPRO MEDICAL INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] These patients are blind due to repeated corneal transplant failures due to sports trauma, various burns, or various diseases of the cornea itself. Blindness due to the inability of light to enter the eyeball

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 5

[0100] Embodiment 5 provides a fifth artificial cornea, the material of which is a titanium alloy sheet.

[0101] The thickness of the bracket is 0.1 mm;

[0102] The axial length of the exposed section 9 of the mirror column is 1 mm, the diameter is 3.3 mm, and the spherical radius of the convex surface 6 is 8 mm;

[0103] The length of the threaded section 8 of the mirror column is 1.6 millimeters, and the diameter is 3.0 millimeters;

[0104] The lead-in section 7 of the mirror column has a length of 1.5 millimeters and a diameter of 2.8 millimeters; the spherical radius of the concave surface 5 is 11.5 millimeters.

[0105] During the operation, the stent is placed between the damaged corneal lamellae. Three months later, a 3mm trephine is used to align the center of the stent at the cornea to unscrew a 3mm hole, and then the mirror column is screwed in and threaded with the stent seat. into one.

[0106] Such as Figure 9 As shown, Embodiment 6 provides a sixth artifi...

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Abstract

The invention relates to the medical field, in particular to an artificial cornea. The artificial cornea comprises a bracket and a mirror column. The bracket extends along a sphere. A poroid bracket seat made of medical methyl methacrylate is arranged at the centre of the bracket. An internal thread is arranged on the inner wall of the bracket seat. The radial section of the mirror column is circular. A guide section, a thread section and an exposed section which are sequentially connected and coaxially arranged are comprised. An external thread matched with the internal thread is arranged on the peripheral face of the thread section. The radial sizes of the guide section, the thread section and the exposed section increase sequentially. The end face of the guide section, which is far from the thread section, is a concave face. The end face of the exposed section, which is far from the thread section, is a convex face. When the bracket is matched with the mirror column, the convex direction of the convex face is consistent with the convex direction of the bracket. Compared with the prior art, the artificial cornea designed by the invention can guide outside light into the fundus to image at the fundus.

Description

technical field [0001] The invention relates to the medical field, in particular to an artificial cornea. Background technique [0002] The human cornea is very delicate and an organ that is very easily damaged. Once the damage is difficult to heal itself, it is one of the world's three leading blind eye diseases. Such as trauma, chemical burns, corneal leukoplakia and other lesions are all blind due to severe corneal damage and unable to perform corneal transplantation. [0003] At present, the best way to treat corneal diseases is live corneal transplantation. Due to the influence of traditional concepts and beliefs, it is extremely difficult to obtain living corneas. At present, only corneas donated by volunteers can be used for transplantation. Multiple live corneal surgeries. He was also blind due to factors such as rejection. At present, only about 4,000 people in China have the opportunity to obtain living corneas for surgery every year. Other patients with corne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/14
Inventor 于好勇
Owner BEIJING MICROKPRO MEDICAL INSTR CO LTD
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